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Texas Instruments 5962-8681301RA
- Part No.:
- 5962-8681301RA
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
5962-8681301RA.pdf
- Description:
- CD54HC533 HIGH SPEED CMOS LOGIC
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Product details
Overview
5962-8681301RA from Texas Instruments is a high-speed CMOS octal inverting transparent latch with three-state outputs, designed for military-grade bus interfacing and data buffering in harsh-environment systems. It features common latch-enable (LE) and output-enable (OE) controls, 20-pin CERDIP package, -55°C to +125°C operating range, and 13ns typical propagation delay (VCC = 5V, CL = 15pF). It drives up to 15 LSTTL loads and supports HC logic levels (2V–6V).
For engineers reviewing the 5962-8681301RA datasheet, 5962-8681301RA pinout, 5962-8681301RA application, or 5962-8681301RA equivalent, this page delivers verified functional identity, military-qualified thermal and electrical specs, CERDIP package mapping, truth-table–consistent timing behavior, and direct alternatives with documented pinout and logic differences.
Technical Context
The 5962-8681301RA implements an octal inverting transparent latch architecture: inputs pass through to inverted outputs when LE is high; data is captured and held on LE's high-to-low transition. Output states are independently controlled by OE - high disables all outputs into high-impedance mode, regardless of LE state.
It belongs to the CD54HC533 family (not HC563), confirmed by ordering information and pinout diagrams. Its CERDIP package (J outline) supports hermetic sealing and MIL-PRF-38535 Class B qualification. Electrical behavior follows HC-type specifications: 2V–6V VCC operation, 30% noise immunity, and CMOS input compatibility with ≤1µA leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - enables interoperability with mixed-voltage logic systems and eliminates need for level shifters in 3.3V/5V hybrid designs. |
| Propagation Delay (tPLH/tPHL) | 13ns typical at VCC = 5V, CL = 15pF - ensures sub-25ns worst-case data-to-output timing for high-throughput bus latching. |
| Operating Temperature | -55°C to +125°C - qualified per MIL-PRF-38535 for deployment in avionics, spaceflight, and ground vehicle control units. |
| Output Drive | 15 LSTTL loads - provides robust fanout for driving legacy TTL buses without external buffers. |
| Input Leakage (II) | ±1 µA max over full temperature range - guarantees stable DC input biasing in low-power standby modes. |
| Three-State Leakage | ±10 µA max - ensures minimal current draw during output disable, critical for power-constrained military subsystems. |
| Power Dissipation Cap. (CPD) | 42 pF - allows accurate dynamic power estimation (PD = CPD·VCC²·fi + ΣCL·VCC²·fo) for thermal design. |
Pinout & Package
5962-8681301RA uses a 20-lead Ceramic Dual-In-Line Package (CERDIP, JEDEC MS-013, TI drawing J), hermetically sealed and qualified for extended military temperature operation. Pin spacing is 0.100" (2.54 mm), body width 0.300" (7.62 mm), and height ≤0.265" (6.73 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-high control: drives all Q outputs to high-impedance when high; enables normal latched output when low. |
| 2–9 | D0–D7 (Data Inputs) | Asynchronous parallel inputs; inverted latched values appear at corresponding Q outputs when LE is low. |
| 10 | GND | Ground reference for all internal logic and output drivers; must be low-impedance connection in high-noise environments. |
| 11–18 | Q0–Q7 (Inverted Outputs) | Three-state, inverted latched outputs; reflect Dn state at last LE falling edge when OE is low. |
| 19 | VCC | Positive supply rail (2V–6V); decoupling capacitor required within 1 cm for stable high-speed switching. |
| 20 | LE (Latch Enable) | Active-high transparent control: passes Dn→Qn inversion while high; captures and holds data on high-to-low transition. |
Key Features
| Feature | Design Value |
|---|---|
| Inverting Transparent Latch Logic | Provides synchronized data capture with polarity inversion - essential for bus arbitration where inverted handshake signals reduce external logic count. |
| Common Latch-Enable Control | Single LE signal synchronizes all eight bits, eliminating skew between channels and enabling deterministic multi-bit sampling in real-time control loops. |
| Three-State Output Enable | OE-driven high-impedance outputs allow safe sharing of bidirectional data buses without contention, supporting multiplexed memory or peripheral interfaces. |
| Wide VCC Range (2V–6V) | Supports direct interface with 3.3V microcontrollers and 5V legacy peripherals without voltage translation, simplifying mixed-supply system design. |
| Military Temperature Range | -55°C to +125°C operation validated per MIL-STD-883 test methods - ensures reliability in uncontrolled environmental enclosures such as engine bays or satellite payloads. |
Applications
| Aerospace Data Acquisition | Avionics Sensor Interface |
|---|---|
Use Scenario: Capturing analog-to-digital converter (ADC) output words in flight control computers under vibration and thermal cycling. IC Role / Device Role / Timing Role: Octal inverting latch buffers ADC parallel output, isolating conversion results from processor bus activity until LE strobe confirms valid sample window. Use Value: Ensures glitch-free data capture across -55°C to +125°C with no timing degradation, meeting DO-254 deterministic latency requirements. |
Use Scenario: Interfacing discrete sensor status lines (e.g., gyroscope fault flags, pressure switch closures) to a central monitoring unit. IC Role / Device Role / Timing Role: Aggregates eight asynchronous sensor signals into a single latched byte, synchronized to system clock domain via LE edge. Use Value: Eliminates metastability risk in safety-critical monitoring paths while maintaining EMI resilience via CMOS input thresholds. |
| Tactical Radio Baseband | Missile Guidance Signal Conditioning |
Use Scenario: Holding digital IF sample data during RF front-end reconfiguration cycles in software-defined radios. IC Role / Device Role / Timing Role: Provides temporary storage for 8-bit I/Q samples using OE-controlled bus isolation during frequency hop transitions. Use Value: Enables zero-latency bus release and reacquisition, preserving waveform integrity across MIL-STD-188-110B burst modes. |
Use Scenario: Buffering guidance algorithm outputs (e.g., fin actuator commands) before delivery to isolated driver stages. IC Role / Device Role / Timing Role: Latches command bits under radiation-hardened control logic, then presents them to downstream isolation amplifiers via three-state outputs. Use Value: Prevents spurious actuation during power-up or reset transients due to guaranteed high-impedance default state when OE is high. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal inverting latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD54HC563F3A | Different pinout: Dn and Qn assigned to opposite sides of package; identical logic function and specs. | Requires PCB layout revision due to swapped input/output terminal locations; not drop-in compatible. | Select only if redesigning board layout and requiring same military qualification with alternate routing topology. |
| CD54HCT533F3A | HCT variant: TTL-compatible inputs (VIH ≥ 2.0V, VIL ≤ 0.8V); otherwise identical pinout, timing, and packaging. | Better interoperability with legacy 5V TTL systems but incompatible with 3.3V-only logic families without level shifting. | Choose when interfacing directly to 74LS/74ALS devices and maintaining existing CERDIP footprint. |
Compared with 5962-8681301RA, CD54HC563F3A demands physical layout changes due to reversed I/O pin mapping, while CD54HCT533F3A trades HC-level voltage flexibility for guaranteed TTL input compatibility - both retain full military temperature and reliability certification but serve distinct interface ecosystems.
Availability
5962-8681301RA is available at Aetrix Electronics and suitable for aerospace data acquisition, avionics sensor interface, and missile guidance signal conditioning requiring stable component supply across extended temperature and long product lifecycles.
Supply support for 5962-8681301RA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability logic solutions, with decades of heritage in military and space-grade component development.
The 5962-8681301RA belongs to TI's CD54HC logic family, engineered specifically for high-reliability applications demanding extended temperature operation, radiation tolerance, and compliance with MIL-PRF-38535 Class B standards.
FAQ
What logic family and variant does 5962-8681301RA belong to?
5962-8681301RA is a CD54HC533 device - a high-speed CMOS octal inverting transparent latch with three-state outputs. It is the military-grade (Class B, MIL-PRF-38535) version of the commercial CD74HC533, fabricated in silicon gate CMOS technology and packaged in hermetic 20-lead CERDIP.
Does 5962-8681301RA support 3.3V operation?
Yes, 5962-8681301RA supports 3.3V operation fully: its HC-type specification guarantees reliable function across 2V–6V VCC, including 3.3V ±10%. Input thresholds scale with VCC (VIH ≥ 1.5V, VIL ≤ 0.5V at 2V; VIH ≥ 3.15V, VIL ≤ 1.35V at 4.5V), ensuring noise-immune interfacing with 3.3V microcontrollers.
Is 5962-8681301RA pin-compatible with CD54HC563F3A?
No, 5962-8681301RA is not pin-compatible with CD54HC563F3A. Although both are military octal latches in 20-lead CERDIP, their pinouts differ: 5962-8681301RA (HC533) places D0–D7 on pins 2–9 and Q0–Q7 on pins 11–18, whereas CD54HC563F3A swaps these groups - requiring PCB redesign for substitution.
What is the maximum clock/data frequency supported by 5962-8681301RA?
5962-8681301RA does not use a clock; it is edge-triggered by LE. Its maximum usable data rate is governed by setup/hold times and propagation delay. With tSU = 10 ns and tH = 8 ns (at VCC = 4.5V), minimum LE pulse period is ~40 ns, supporting effective latching rates up to 25 MHz in sustained operation under worst-case conditions.
How does the three-state output control work on 5962-8681301RA?
On 5962-8681301RA, the OE pin controls all eight outputs simultaneously: when OE is high, Q0–Q7 enter high-impedance state regardless of LE or input states; when OE is low, outputs actively drive inverted latched data. This enables safe bus sharing and eliminates contention in multi-master systems.
5962-8681301RA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
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- Mounting Type:
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- Supplier Device Package:
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5962-8681301RA FAQ
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6.How does Aetrix verify that 5962-8681301RA is sourced from the original manufacturer or authorized distributors?
All 5962-8681301RA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 5962-8681301RA meets industry standards.
7.What is the process for return or replacement of 5962-8681301RA?
All 5962-8681301RA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8681301RA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 5962-8681301RA part is unused and in its original packaging.
Return procedure for 5962-8681301RA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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